Ultrathin centrifugal fan

Abstract

The present invention provides an ultra-thin centrifugal wind screen machine, which comprises a casing, and is characterized in that a top board of the casing is provided with a detachable covering plate. A plane wire arranged on an air outlet of the front side of the casing is a metal net plate. A plurality of eccentric blowers, a lining upper plate and a lining are sequentially arranged inside the casing from up to bottom. The lining is fixed on the casing. The lower end of the lining is corresponding to the air outlet of the lower end of the casing. A plurality of PTC thermal sensitive ceramic elements are arranged inside the lining. Compared with the prior art, the present invention changes the original plastic net plate into the metal net plate, which not only enhances the strength of the plane net but also has beautiful appearance, conical lining, narrower air channel, and increases wind speed by one more times. The blower is changed into the centrifugal blower from the axial flow blower, which greatly reduces the size and thickness of the wind screen machine under the conditions of none changing of the air volume by the special ultra-thin designing of the centrifugal blower.

Description

(1) Technical field [0001] The invention relates to a heating device, in particular to an ultra-thin centrifugal air curtain machine. (2) Background technology [0002] With the continuous improvement of people's living standards and the increasingly active market economy, all commercial units are trying their best to improve their service environment, especially in winter, in order to keep the normal indoor temperature from flowing outside and make customers feel warm, not only large-scale high-end shopping malls And luxury hotels are widely using air curtain machines, and small and medium restaurants and self-employed are also following suit. According to literature records, my country's air curtain machine market is developing rapidly with a growth rate of 15%, especially in the northeast region, which has a huge demand for hot air curtain machines. At present, there are mainly several types of air curtain machines, such as centrifugal fan type, cross-flow fan type and axia...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of people's living standards and the increasingly active market economy, all commercial units are trying their best to improve their service environment, especially in winter, in order to keep the normal indoor temperature from flowing outside and make customers feel warm, not only large-scale high-end shopping malls And luxury hotels are widely using air curtain machines, and small and medium restaurants and self-employed are also following suit. According to literature records, my country's air curtain machine market is developing rapidly with a growth rate of 15%, especially in the northeast region, which has a huge demand for hot air curtain machines. At present, air curtain machines mainly include centrifugal fan type, cross flow fan type and axial flow fan type, etc. These products all have defects such as large volume, low wind speed, complex structure, and unsightly appearance.

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